[caver.adam] has been working on his Open LIDAR project for a few years using an SF30-B High Speed Rangefinder and laser device for a dual-system atop a gimbal with stepper motors for cave scanning.

If you’re really keen, you may even tell some basic features of the face. But if you were using this LiDAR sensor, you could see everything with 1 millimeter precision. A recent study published ...